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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 15. Отображено 15.
25-06-2014 дата публикации

Small-area and ultralow-noise LDO

Номер: CN103885518A
Автор: JIANG JINGUANG, WANG JIANGPENG
Принадлежит:

The invention belongs to the field of power management and particularly relates to a small-area and ultralow-noise LDO. The LDO comprises a fore-stage pre-regulation module and a post-stage regulation module. The fore-stage pre-regulation module comprises an error amplifier, a resistance potential-divider network and an RC low-pass filter, wherein the error amplifier, the resistance potential-divider network and the RC low-pass filter are connected in sequence. The post-stage regulation module comprises a post-stage error amplifier and a PMOS pass transistor. The output of the fore-stage pre-regulation module is connected with the input of the post-stage regulation module, and the input of the post-stage regulation module is connected with a load current source. According to the LDO, it can be guaranteed that a low-pass filter circuit has very low cut-off frequency just through very small capacitance to filter out noise produced by a reference voltage source, and voltage obtained after ...

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Номер записи: 1
21-10-2015 дата публикации

Vehicle bogie combined test equipment

Номер: CN0204718821U
Автор: FU JINGANG, YANG TINGTING, MU BIAO, WANG JIANGPENG, SHI JINGYANG, SONG XIONG, ZHANG GUANGCHEN, WU FEI, HU JIANQIANG, LI JIE
Принадлежит:

The utility model relates to a vehicle bogie combined test equipment, including the base to and install static test device, running -in test device and the lift braced system on the base, the static test device includes the portal frame, pushes down device and fixed rail, and the top of fixed rail is used for supporting vehicle bogie's wheel outside tread, and pressure sensor is installed to the rail inslot of every fixed rail, running -in test device includes running -in system and elevating system, and running -in system's friction pulley is located the inboard rim in wheel bottom under, every wheel of vehicle bogie is equipped with a fixed rail and a running -in test device, and lift braced system is located the vehicle bogie barycenter under. With static test device, running -in test device and function integration in an organic whole of weighing, saved the space effectively, no longer need the hoist to carry out the transfer, reduced handling work load widely, improved work efficiency ...

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Номер записи: 2
04-07-2023 дата публикации

Vegetable detection and classification method, device and system based on light attention

Номер: CN116386032A
Автор: WU JUN, WANG JIABAO, YUAN ZIJIAN, WANG JIANGPENG, WU JUNWEI, NIE WANYU
Принадлежит:

The invention discloses a light attention-based vegetable detection and classification method, device and system. The method comprises the following steps: firstly, collecting a to-be-detected vegetable picture; the collected to-be-detected vegetable picture is preprocessed; secondly, an improved YOLO network model is constructed, the improved YOLO network model uses a CBAM attention mechanism to replace two initial traditional convolutional layers of a backbone part of an original YOLOv7 network, and feature extraction is carried out from two dimensions of space and channel by adopting standard Conv and combining the CBAM attention mechanism; inputting a training set divided from pre-labeled vegetable image data into the constructed improved YOLO network model for training to obtain a trained model; and finally, detecting a to-be-detected vegetable picture by using the trained model, marking out an anchor box and classifying. According to the invention, the classification accuracy can ...

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Номер записи: 3
09-09-2015 дата публикации

Comprehensive car bogie test bed

Номер: CN104897422A
Автор: FU JIN'GANG, YANG TINGTING, MU BIAO, WANG JIANGPENG, SHI JINGYANG, SONG XIONG, ZHANG GUANGCHEN, WU FEI, HU JIANQIANG, LI JIE
Принадлежит:

The invention relates to a comprehensive car bogie test bed, which comprises a base, a static load tester, running-in testers and a lifting support system, and the static load tester, the running-in testers and the lifting support system are mounted on the base; the static load tester comprises a gantry, a downward pressing device and fixed rails, the tops of the fixed rails are used for supporting the outer treads of wheels of a car bogie, and a pressure sensor is mounted in the groove of each fixed rail; each running-in tester comprises a running-in system and a lifting mechanism, and friction wheels of the running-in systems are located under the inner bottom rims of the wheels; each wheel of the car bogie is equipped with a fixed rail and a running-in tester, and the lifting support system is located under the barycenter of the car bogie. The static load tester, the running-in testers and a weighing function are integrated, a space is effectively saved, a crane is not needed for transfer ...

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Номер записи: 4
28-04-2023 дата публикации

Concrete mixer truck with electric driving force coupling system

Номер: CN116022056A
Автор: YUAN HONGMING, BAO WEIDONG, HUO LELE, WANG CHAO, WANG JIANGPENG
Принадлежит:

The invention discloses a concrete mixer truck with an electric driving force coupling system, which comprises a truck body, a dynamic coupling transmission system, an ISG (Integrated Starter Generator) motor and a power battery, and the truck body comprises a chassis, and a power source, a mixing drum and a hydraulic system which are respectively connected with the chassis. The power coupling transmission system comprises a main input end, an auxiliary input end and an output end, the main input end is connected to a power source through a first cross-shaped transmission shaft, the auxiliary input end is connected to the ISG motor, the output end is connected to a hydraulic system of the mixer truck through a second cross-shaped transmission shaft, and the power battery is electrically connected with the ISG motor. The power source is an engine, the engine is integrated with a power takeoff, the mixing drum is obliquely mounted above the chassis through a front rack and a rear rack, the ...

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Номер записи: 5
02-06-2023 дата публикации

Power transmission line fault detection method and system based on lightweight target detection model

Номер: CN116206222A
Автор: WU JUN, DONG JIAMING, ZHENG XINLI, NIE WANYU, WANG JIANGPENG, WANG CHUNZHI
Принадлежит:

The invention provides a power transmission line fault detection method and system based on a lightweight target detection model. The method comprises a power transmission line image shooting step, a power transmission line image processing step, a power transmission line inspection image detection step and a power transmission line defect identification and classification step. Wherein the power transmission line image shooting step is to shoot a to-be-detected power transmission line image, the power transmission line image processing step is to perform data processing on the shot power transmission line image to ensure that the image can be identified by a lightweight target detection network, and the power transmission line inspection image detection step is to detect the power transmission line inspection image according to a trained model. Whether the to-be-detected power transmission line image has defects and damages is detected, and the power transmission line defect identification ...

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Номер записи: 6
10-09-2014 дата публикации

Ocean type solar energy charging and discharging controller

Номер: CN104037917A
Автор: KANG JIANJUN, WU HAIQIANG, FENG YUEYONG, LIU CHAORAN, LI LINQI, WANG JIANGPENG
Принадлежит:

The invention discloses an ocean type solar energy charging and discharging controller. The charging and discharging controller is characterized by comprising a power supply unit, a charging unit, a discharging unit and a display unit. The power supply unit is used for providing a work power supply for the controller; the charging unit is used for charging a storage battery and comprises a charging driving circuit, a charging upper limit control circuit, a charging starting control circuit and a pulse width modulation circuit, and the charging upper limit control circuit is electrically connected with the charging driving circuit; the discharging circuit is used for providing power for loads and comprises a first discharging control circuit, a second discharging control circuit, a first discharging driving circuit and a second discharging driving circuit; the display unit is used for displaying the work state of the controller and comprises a charging display circuit, a power-lack alarm ...

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Номер записи: 7
12-05-2023 дата публикации

External wall thermal insulation integrated gap splicing structure joint and construction method

Номер: CN116104224A
Автор: DING ZHIRONG, LIU SHUANSHUAN, WANG JIANGPENG, QIN NINGNING, YE LIANG
Принадлежит:

The invention discloses an external wall thermal insulation integrated gap splicing structure node and a construction method, the external wall thermal insulation integrated gap splicing structure node comprises a base layer wall body and a thermal insulation integrated plate, and mortise and tenon splicing seams A and mortise and tenon splicing seams B are mechanically cut in the edges of the thermal insulation integrated plate and the base layer wall body in advance; the heat preservation integrated plate and the base layer wall body are spliced and installed through a mortise and tenon splicing seam A and a mortise and tenon splicing seam B. A plurality of connecting pieces are arranged in the heat preservation integrated plate, and a thick rock wool strip fireproof isolation belt and thick expanded and vitrified small ball heat preservation mortar are arranged on the base layer wall body. The thermal insulation integrated board, the cement mortar leveling layer, the polymer anti-crack ...

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Номер записи: 8
25-08-2023 дата публикации

Regeneration method of resin adsorption bed in sulfur-ammonia-containing sewage treatment process

Номер: CN116637606A
Автор: MA JIPENG, LIU SHENGHAI, AI XIAOBING, HAO YONG, LIU JIANMING, WANG JIANGPENG, WANG QIANG
Принадлежит:

The invention discloses a regeneration method of a resin adsorption bed in a sulfur-ammonia-containing sewage treatment process, which comprises the following steps: S1, opening an upper inlet and a lower outlet, injecting water from the upper inlet, and then collecting liquid flowing out from the lower outlet; s2, stopping injecting water, injecting methylbenzene from an upper inlet, standing and soaking after the methylbenzene fully infiltrates the resin particles, continuously injecting methylbenzene from the upper inlet, collecting liquid flowing out from a lower outlet, and stopping injecting methylbenzene until the liquid flowing out from the lower outlet is transparent; s3, nitrogen is injected from an upper inlet, and liquid flowing out from a lower outlet is collected; after no liquid flows out of the lower outlet, nitrogen injection is stopped, superheated water vapor is blown in from the upper inlet, and the liquid flowing out of the lower outlet is cooled and collected; and ...

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Номер записи: 9
09-09-2015 дата публикации

Synthetic method and application of visible-light responding carbon nitride/iron sesquioxide nano composite

Номер: CN104888837A
Автор: GAO JUNKUO, WANG JIANGPENG, YAO JUMING
Принадлежит:

The invention discloses a synthetic method and application of a visible-light responding carbon nitride/iron sesquioxide nano composite, belongs to the fields of composite preparation technologies and photocatalysis and aims to solve the problems that a conventional carbon nitride material is small in specific surface area, high in photon-generated electron-hole recombination rate, low in solar energy utilization ratio and the like. The composite is prepared by taking melamine and iron nitrate as raw materials and methanol as a solvent and adopting the chemical reaction method and the heat treating process. Compared with carbon nitride, the prepared carbon nitride/iron sesquioxide nano composite has a wider light absorption range (expanded from the ultraviolet region to the visible region), greatly improves the solar energy utilization ratio, meanwhile, has a larger specific surface area, is low in photon-generated electron-hole recombination rate, and can effectively degrade Rhodamin B ...

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Номер записи: 10
16-09-2015 дата публикации

Synthesis method and application of porous carbonitride/copper oxide nanorod composite material with visible light response

Номер: CN104907087A
Автор: GAO JUNKUO, WANG JIANGPENG, YAO JUMING
Принадлежит:

The invention discloses a synthesis method and an application of a porous carbonitride/copper oxide nanorod composite material with visible light response, and belongs to the fields of composite material preparation technologies and photocatalysis. The problems of small specific surface area, high photo-generated electron-hole recombination rate and low quantum yield of present carbonitride materials are solved in the invention. The composite material is prepared from melamine and copper acetate through a chemical reaction process and a heat treatment process with methanol as a solvent. Compared with carbonitride, the porous carbonitride/copper oxide nanorod composite material prepared in the invention has the advantages of high specific surface area, good photocatalysis performance, and effective degradation of rhodamine B under visible light. The preparation method has the advantages of simple process, cheap raw materials and large scale production; and the obtained composite material ...

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Номер записи: 11
24-06-2015 дата публикации

Hidden online monitoring system for marine monitoring equipment

Номер: CN104731070A
Автор: WU HAIQIANG, SHANG YONGJUN, KANG JIANJUN, ZHOU DA, YAO SHIQIANG, WANG JIANGPENG, LI LINQI
Принадлежит:

The invention discloses a hidden online monitoring system for marine monitoring equipment. The hidden online monitoring system comprises a power supply unit, a locating information acquisition unit, a safety information acquisition unit, a communication unit and a central processing unit, wherein the locating information acquisition unit comprises N locating units and N locating antenna groups; the communication unit comprises N communication modules and N communication antenna groups; the power supply unit is electrically connected with the locating information acquisition unit, the safety information acquisition unit, the communication unit and a power supply drive terminal of the central processing unit; an I/O port of the central processing unit is electrically connected with the locating information acquisition unit, the safety information acquisition unit and the communication unit through data lines. By the adoption of the technical scheme, the hidden online monitoring system is ...

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Номер записи: 12
12-05-2023 дата публикации

Cross-modal big data retrieval method and system based on deep fusion

Номер: CN116108215A
Автор: WU JUN, ZHENG XINLI, YUAN ZIJIAN, WANG JIANGPENG, WANG CHUNZHI
Принадлежит:

The invention provides a cross-modal big data retrieval method and a cross-modal big data retrieval system based on deep fusion. The system comprises: a feature extraction module, which is used for inputting a preprocessed text modal into a BERT + BiLSTM network for feature extraction, and inputting an image modal into a Vision Transform network for feature extraction; and the multi-modal fusion module is used for inputting the text and image features into an E-DCCA network to carry out nonlinear transformation of a full connection layer for multiple times, then carrying out correlation analysis to obtain correlation coefficients of two modals, and outputting a corresponding image-text representation pair according to the highest correlation coefficient. The system can effectively improve the retrieval efficiency of workers on related data, assists people in the region in quickly knowing the local development condition, greatly reduces the workload of workers, and improves the working efficiency ...

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Номер записи: 13
23-06-2023 дата публикации

Target detection method, system and equipment based on multi-modal feature extraction network

Номер: CN116310669A
Автор: WU JUN, DONG JIAMING, NIE WANYU, WU JUNWEI, WANG JIANGPENG, YE ZHIWEI
Принадлежит:

The invention discloses a target detection method, system and device based on a multi-modal feature extraction network, and the method comprises the steps: firstly obtaining multi-modal data in a to-be-detected scene, including timestamp-related images and other modal text data; extracting other modal text data to obtain text semantic features; according to the text semantic features, determining a possible to-be-detected target range; generating a pre-selection box on the image with the same timestamp in the to-be-detected target range; inputting the generated pre-selected box into a multi-modal feature extraction network, carrying out feature extraction, and abandoning an anchor box deviating from the pre-selected box; and finally, classifying the target for generating the anchor frame according to classification accuracy, determining a target category, and obtaining a detection result. According to the method, the multi-modal feature extraction network can be better assisted to find ...

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Номер записи: 14
08-08-2023 дата публикации

Multi-modal sentiment analysis method and system based on attention mechanism

Номер: CN116563751A
Автор: WU JUN, ZHENG XINLI, YUAN ZIJIAN, WANG JIANGPENG, WU JUNWEI, NIE WANYU
Принадлежит:

The invention provides a multi-modal sentiment analysis method and system based on an attention mechanism, and belongs to the technical field of deep learning, and the method comprises the steps: carrying out the preprocessing of a multi-modal sentiment analysis data set, and obtaining a multi-modal data vector; inputting the multi-modal data vector into a double-layer bidirectional GRU network based on an attention mechanism for feature extraction to obtain a multi-modal feature vector; inputting the multi-modal feature vector into a low-rank tensor fusion model for feature fusion to obtain a fused multi-modal feature; and determining the sentiment polarity of the fused multi-modal features, and outputting a sentiment analysis result. According to the method, the time sequence features of texts and audios in video data can be effectively learned by adopting the double-layer bidirectional GRU model, the method has the characteristics that the structure is simple, the learning speed is high ...

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Номер записи: 15